qf
/
quakeforge-old
mirror of https://git.code.sf.net/p/quake/quakeforge-old
0
0
Fork 0
Code Issues Packages Projects Releases Wiki Activity
quakeforge-old/common/vid_x11.c

826 lines
19 KiB
C
Raw Blame History

/*
vid_x11.c - general x11 video driver
Copyright (C) 1996-1997 Id Software, Inc.
Copyright (C) 1999-2000 contributors of the QuakeForge project
Copyright (C) 2000 Marcus Sundberg [mackan@stacken.kth.se]
Please see the file "AUTHORS" for a list of contributors
This program is free software; you can redistribute it and/or
modify it under the terms of the GNU General Public License
as published by the Free Software Foundation; either version 2
of the License, or (at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software
Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#define _BSD
#include <config.h>
#include <context_x11.h>
#include <ctype.h>
#include <sys/time.h>
#include <sys/types.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h>
#endif
#include <signal.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <sys/ipc.h>
#include <sys/shm.h>
#include <X11/Xlib.h>
#include <X11/Xutil.h>
#include <X11/Xatom.h>
#include <X11/keysym.h>
#include <X11/extensions/XShm.h>
#include <errno.h>
#include <quakedef.h>
#include <d_local.h>
#include <keys.h>
#include <cvar.h>
#include <menu.h>
#include <sys.h>
#include <cmd.h>
#include <lib_replace.h>
#include <draw.h>
#include <console.h>
#include <client.h>
#include <input.h>
#ifdef HAVE_STRINGS_H
#include <strings.h>
#endif
viddef_t vid; // global video state
unsigned short d_8to16table[256];
Window x_win;
static Colormap x_cmap;
static GC x_gc;
static Visual *x_vis;
static XVisualInfo *x_visinfo;
static Atom aWMDelete = 0;
int XShmQueryExtension(Display *);
int XShmGetEventBase(Display *);
qboolean doShm;
static XShmSegmentInfo x_shminfo[2];
static int current_framebuffer;
static XImage *x_framebuffer[2] = { 0, 0 };
static int verbose = 0;
int VID_options_items = 1;
static byte current_palette[768];
typedef unsigned short PIXEL16;
typedef unsigned long PIXEL24;
static PIXEL16 st2d_8to16table[256];
static PIXEL24 st2d_8to24table[256];
static int shiftmask_fl=0;
static long r_shift,g_shift,b_shift;
static unsigned long r_mask,g_mask,b_mask;
static long X11_highhunkmark;
#define STD_EVENT_MASK \
( VisibilityChangeMask | ExposureMask | StructureNotifyMask)
static void
shiftmask_init()
{
unsigned int x;
r_mask=x_vis->red_mask;
g_mask=x_vis->green_mask;
b_mask=x_vis->blue_mask;
for (r_shift=-8,x=1; x<r_mask; x <<= 1) r_shift++;
for (g_shift=-8,x=1; x<g_mask; x <<= 1) g_shift++;
for (b_shift=-8,x=1; x<b_mask; x <<= 1) b_shift++;
shiftmask_fl=1;
}
static PIXEL16
xlib_rgb16(int r, int g, int b)
{
PIXEL16 p = 0;
if (shiftmask_fl==0) shiftmask_init();
if (r_shift>0) {
p=(r<<(r_shift))&r_mask;
} else if (r_shift<0) {
p=(r>>(-r_shift))&r_mask;
} else p|=(r&r_mask);
if (g_shift>0) {
p|=(g<<(g_shift))&g_mask;
} else if (g_shift<0) {
p|=(g>>(-g_shift))&g_mask;
} else p|=(g&g_mask);
if (b_shift>0) {
p|=(b<<(b_shift))&b_mask;
} else if (b_shift<0) {
p|=(b>>(-b_shift))&b_mask;
} else p|=(b&b_mask);
return p;
}
static PIXEL24
xlib_rgb24(int r,int g,int b)
{
PIXEL24 p = 0;
if (shiftmask_fl==0) shiftmask_init();
if (r_shift>0) {
p=(r<<(r_shift))&r_mask;
} else if (r_shift<0) {
p=(r>>(-r_shift))&r_mask;
} else p|=(r&r_mask);
if (g_shift>0) {
p|=(g<<(g_shift))&g_mask;
} else if (g_shift<0) {
p|=(g>>(-g_shift))&g_mask;
} else p|=(g&g_mask);
if (b_shift>0) {
p|=(b<<(b_shift))&b_mask;
} else if (b_shift<0) {
p|=(b>>(-b_shift))&b_mask;
} else p|=(b&b_mask);
return p;
}
static void
st2_fixup(XImage *framebuf, int x, int y, int width, int height)
{
int xi,yi;
unsigned char *src;
PIXEL16 *dest;
if (x < 0 || y < 0) return;
for (yi = y; yi < (y+height); yi++) {
src = &framebuf->data [yi * framebuf->bytes_per_line];
dest = (PIXEL16*)src;
for(xi = (x+width-1); xi >= x; xi--) {
dest[xi] = st2d_8to16table[src[xi]];
}
}
}
static void
st3_fixup(XImage *framebuf, int x, int y, int width, int height)
{
int yi;
unsigned char *src;
PIXEL24 *dest;
register int count, n;
if (x < 0 || y < 0) return;
for (yi = y; yi < (y+height); yi++) {
src = &framebuf->data [yi * framebuf->bytes_per_line];
// Duff's Device
count = width;
n = (count + 7) / 8;
dest = ((PIXEL24 *)src) + x+width - 1;
src += x+width - 1;
switch (count % 8) {
case 0: do { *dest-- = st2d_8to24table[*src--];
case 7: *dest-- = st2d_8to24table[*src--];
case 6: *dest-- = st2d_8to24table[*src--];
case 5: *dest-- = st2d_8to24table[*src--];
case 4: *dest-- = st2d_8to24table[*src--];
case 3: *dest-- = st2d_8to24table[*src--];
case 2: *dest-- = st2d_8to24table[*src--];
case 1: *dest-- = st2d_8to24table[*src--];
} while (--n > 0);
}
// for(xi = (x+width-1); xi >= x; xi--) {
// dest[xi] = st2d_8to16table[src[xi]];
// }
}
}
/*
================
D_BeginDirectRect
================
*/
void D_BeginDirectRect (int x, int y, byte *pbitmap, int width, int height)
{
// direct drawing of the "accessing disk" icon isn't supported
}
/*
================
D_EndDirectRect
================
*/
void D_EndDirectRect (int x, int y, int width, int height)
{
// direct drawing of the "accessing disk" icon isn't supported
}
/*
=================
VID_Gamma_f
Keybinding command
=================
*/
byte vid_gamma[256];
void VID_Gamma_f (void)
{
float g, f, inf;
int i;
if (Cmd_Argc () == 2) {
g = Q_atof (Cmd_Argv(1));
for (i=0 ; i<255 ; i++) {
f = pow ((i+1)/256.0, g);
inf = f*255 + 0.5;
if (inf < 0) inf = 0;
if (inf > 255) inf = 255;
vid_gamma[i] = inf;
}
VID_SetPalette(current_palette);
vid.recalc_refdef = 1; // force a surface cache flush
}
}
// ========================================================================
// makes a null cursor
// ========================================================================
static Cursor CreateNullCursor(Display *display, Window root)
{
Pixmap cursormask;
XGCValues xgc;
GC gc;
XColor dummycolour;
Cursor cursor;
cursormask = XCreatePixmap(display, root, 1, 1, 1/*depth*/);
xgc.function = GXclear;
gc = XCreateGC(display, cursormask, GCFunction, &xgc);
XFillRectangle(display, cursormask, gc, 0, 0, 1, 1);
dummycolour.pixel = 0;
dummycolour.red = 0;
dummycolour.flags = 04;
cursor = XCreatePixmapCursor(display, cursormask, cursormask,
&dummycolour,&dummycolour, 0,0);
XFreePixmap(display,cursormask);
XFreeGC(display,gc);
return cursor;
}
static void
ResetFrameBuffer(void)
{
int vid_surfcachesize, buffersize;
void *vid_surfcache;
int mem, pwidth;
if (x_framebuffer[0]) {
XDestroyImage(x_framebuffer[0]);
}
if (d_pzbuffer) {
D_FlushCaches ();
Hunk_FreeToHighMark(X11_highhunkmark);
d_pzbuffer = NULL;
}
X11_highhunkmark = Hunk_HighMark ();
/* Alloc an extra line in case we want to wrap, and allocate
the z-buffer */
buffersize = vid.width * vid.height * sizeof(*d_pzbuffer);
vid_surfcachesize = D_SurfaceCacheForRes(vid.width, vid.height);
buffersize += vid_surfcachesize;
d_pzbuffer = Hunk_HighAllocName(buffersize, "video");
if (d_pzbuffer == NULL) {
Sys_Error ("Not enough memory for video mode\n");
}
vid_surfcache = (byte *) d_pzbuffer
+ vid.width * vid.height * sizeof(*d_pzbuffer);
D_InitCaches(vid_surfcache, vid_surfcachesize);
pwidth = x_visinfo->depth / 8;
if (pwidth == 3) pwidth = 4;
mem = ((vid.width*pwidth+7)&~7) * vid.height;
x_framebuffer[0] = XCreateImage(x_disp, x_vis, x_visinfo->depth,
ZPixmap, 0,
malloc(mem),
vid.width, vid.height,
32, 0);
if (!x_framebuffer[0]) {
Sys_Error("VID: XCreateImage failed\n");
}
}
static void
ResetSharedFrameBuffers(void)
{
int vid_surfcachesize, buffersize;
void *vid_surfcache;
int size;
int key;
int minsize = getpagesize();
int frm;
if (d_pzbuffer) {
D_FlushCaches ();
Hunk_FreeToHighMark(X11_highhunkmark);
d_pzbuffer = NULL;
}
X11_highhunkmark = Hunk_HighMark ();
// alloc an extra line in case we want to wrap, and allocate the z-buffer
buffersize = vid.width * vid.height * sizeof (*d_pzbuffer);
vid_surfcachesize = D_SurfaceCacheForRes (vid.width, vid.height);
buffersize += vid_surfcachesize;
d_pzbuffer = Hunk_HighAllocName(buffersize, "video");
if (d_pzbuffer == NULL) {
Sys_Error ("Not enough memory for video mode\n");
}
vid_surfcache = (byte *) d_pzbuffer
+ vid.width * vid.height * sizeof (*d_pzbuffer);
D_InitCaches(vid_surfcache, vid_surfcachesize);
for (frm=0 ; frm<2 ; frm++)
{
// free up old frame buffer memory
if (x_framebuffer[frm])
{
XShmDetach(x_disp, &x_shminfo[frm]);
free(x_framebuffer[frm]);
shmdt(x_shminfo[frm].shmaddr);
}
// create the image
x_framebuffer[frm] = XShmCreateImage( x_disp,
x_vis,
x_visinfo->depth,
ZPixmap,
0,
&x_shminfo[frm],
vid.width,
vid.height );
// grab shared memory
size = x_framebuffer[frm]->bytes_per_line
* x_framebuffer[frm]->height;
if (size < minsize)
Sys_Error("VID: Window must use at least %d bytes\n", minsize);
key = random();
x_shminfo[frm].shmid = shmget((key_t)key, size, IPC_CREAT|0777);
if (x_shminfo[frm].shmid==-1)
Sys_Error("VID: Could not get any shared memory\n");
// attach to the shared memory segment
x_shminfo[frm].shmaddr =
(void *) shmat(x_shminfo[frm].shmid, 0, 0);
printf("VID: shared memory id=%d, addr=0x%lx\n", x_shminfo[frm].shmid,
(long) x_shminfo[frm].shmaddr);
x_framebuffer[frm]->data = x_shminfo[frm].shmaddr;
// get the X server to attach to it
if (!XShmAttach(x_disp, &x_shminfo[frm]))
Sys_Error("VID: XShmAttach() failed\n");
XSync(x_disp, 0);
shmctl(x_shminfo[frm].shmid, IPC_RMID, 0);
}
}
static void event_shm(XEvent *event)
{
if (doShm)
oktodraw = true;
}
// Called at startup to set up translation tables, takes 256 8 bit RGB values
// the palette data will go away after the call, so it must be copied off if
// the video driver will need it again
void VID_Init (unsigned char *palette)
{
int pnum, i;
XVisualInfo template;
int num_visuals;
int template_mask;
//plugin_load("in_x11.so");
// Cmd_AddCommand("gamma", VID_Gamma_f);
for (i=0; i < 256; i++) vid_gamma[i] = i;
vid.width = 320;
vid.height = 200;
vid.maxwarpwidth = WARP_WIDTH;
vid.maxwarpheight = WARP_HEIGHT;
vid.numpages = 2;
vid.colormap = host_colormap;
vid.fullbright = 256 - LittleLong (*((int *)vid.colormap + 2048));
//vid.cbits = VID_CBITS;
//vid.grades = VID_GRADES;
srandom(getpid());
verbose=COM_CheckParm("-verbose");
// open the display
x11_open_display();
// check for command-line window size
if ((pnum=COM_CheckParm("-winsize")))
{
if (pnum >= com_argc-2)
Sys_Error("VID: -winsize <width> <height>\n");
vid.width = Q_atoi(com_argv[pnum+1]);
vid.height = Q_atoi(com_argv[pnum+2]);
if (!vid.width || !vid.height)
Sys_Error("VID: Bad window width/height\n");
}
if ((pnum=COM_CheckParm("-width"))) {
if (pnum >= com_argc-1)
Sys_Error("VID: -width <width>\n");
vid.width = Q_atoi(com_argv[pnum+1]);
if (!vid.width)
Sys_Error("VID: Bad window width\n");
}
if ((pnum=COM_CheckParm("-height"))) {
if (pnum >= com_argc-1)
Sys_Error("VID: -height <height>\n");
vid.height = Q_atoi(com_argv[pnum+1]);
if (!vid.height)
Sys_Error("VID: Bad window height\n");
}
template_mask = 0;
// specify a visual id
if ((pnum=COM_CheckParm("-visualid")))
{
if (pnum >= com_argc-1)
Sys_Error("VID: -visualid <id#>\n");
template.visualid = Q_atoi(com_argv[pnum+1]);
template_mask = VisualIDMask;
}
// If not specified, use default visual
else
{
int screen;
screen = XDefaultScreen(x_disp);
template.visualid =
XVisualIDFromVisual(XDefaultVisual(x_disp, screen));
template_mask = VisualIDMask;
}
// pick a visual- warn if more than one was available
x_visinfo = XGetVisualInfo(x_disp, template_mask, &template, &num_visuals);
if (num_visuals > 1) {
printf("Found more than one visual id at depth %d:\n", template.depth);
for (i=0 ; i<num_visuals ; i++)
printf(" -visualid %d\n", (int)(x_visinfo[i].visualid));
} else if (num_visuals == 0) {
if (template_mask == VisualIDMask) {
Sys_Error("VID: Bad visual id %d\n",
template.visualid);
} else {
Sys_Error("VID: No visuals at depth %d\n",
template.depth);
}
}
if (verbose) {
printf("Using visualid %d:\n", (int)(x_visinfo->visualid));
printf(" class %d\n", x_visinfo->class);
printf(" screen %d\n", x_visinfo->screen);
printf(" depth %d\n", x_visinfo->depth);
printf(" red_mask 0x%x\n", (int)(x_visinfo->red_mask));
printf(" green_mask 0x%x\n", (int)(x_visinfo->green_mask));
printf(" blue_mask 0x%x\n", (int)(x_visinfo->blue_mask));
printf(" colormap_size %d\n", x_visinfo->colormap_size);
printf(" bits_per_rgb %d\n", x_visinfo->bits_per_rgb);
}
x_vis = x_visinfo->visual;
/* Setup attributes for main window */
{
int attribmask = CWEventMask | CWBorderPixel;
XSetWindowAttributes attribs;
attribs.event_mask = STD_EVENT_MASK;
attribs.border_pixel = 0;
/* Create the main window */
x_win = XCreateWindow(x_disp,
XRootWindow(x_disp, x_visinfo->screen),
0, 0, vid.width, vid.height,
0, /* borderwidth */
x_visinfo->depth, InputOutput, x_vis,
attribmask, &attribs);
/* Give it a title */
XStoreName(x_disp, x_win, "XQuake");
/* Make window respond to Delete events */
aWMDelete = XInternAtom(x_disp, "WM_DELETE_WINDOW", False);
XSetWMProtocols(x_disp, x_win, &aWMDelete, 1);
}
if (x_visinfo->depth == 8) {
/* Create and upload the palette */
if (x_visinfo->class == PseudoColor) {
x_cmap = XCreateColormap(x_disp, x_win,
x_vis, AllocAll);
VID_SetPalette(palette);
XSetWindowColormap(x_disp, x_win, x_cmap);
}
}
// inviso cursor
XDefineCursor(x_disp, x_win, CreateNullCursor(x_disp, x_win));
// create the GC
{
XGCValues xgcvalues;
int valuemask = GCGraphicsExposures;
xgcvalues.graphics_exposures = False;
x_gc = XCreateGC(x_disp, x_win, valuemask, &xgcvalues );
}
// map the window
XMapWindow(x_disp, x_win);
// wait for first exposure event
{
XEvent event;
do
{
XNextEvent(x_disp, &event);
if (event.type == Expose && !event.xexpose.count)
oktodraw = true;
} while (!oktodraw);
}
// now safe to draw
// even if MITSHM is available, make sure it's a local connection
if (XShmQueryExtension(x_disp))
//if (0)
{
char *displayname;
doShm = true;
displayname = (char *) getenv("DISPLAY");
if (displayname)
{
char *d = displayname;
while (*d && (*d != ':')) d++;
if (*d) *d = 0;
if (!(!strcasecmp(displayname, "unix") || !*displayname))
doShm = false;
}
}
if (doShm)
{
x_shmeventtype = XShmGetEventBase(x_disp) + ShmCompletion;
ResetSharedFrameBuffers();
}
else
ResetFrameBuffer();
current_framebuffer = 0;
vid.rowbytes = x_framebuffer[0]->bytes_per_line;
vid.buffer = x_framebuffer[0]->data;
vid.direct = 0;
vid.conbuffer = x_framebuffer[0]->data;
vid.conrowbytes = vid.rowbytes;
vid.conwidth = vid.width;
vid.conheight = vid.height;
vid.aspect = ((float)vid.height / (float)vid.width) * (320.0 / 240.0);
// XSynchronize(x_disp, False);
x11_add_event(x_shmeventtype, event_shm);
}
void
VID_ShiftPalette(unsigned char *p)
{
VID_SetPalette(p);
}
void
VID_SetPalette(unsigned char *palette)
{
int i;
XColor colors[256];
for (i=0;i<256;i++) {
st2d_8to16table[i] = xlib_rgb16(palette[i*3], palette[i*3+1],
palette[i*3+2]);
st2d_8to24table[i] = xlib_rgb24(palette[i*3], palette[i*3+1],
palette[i*3+2]);
}
if (x_visinfo->class == PseudoColor && x_visinfo->depth == 8) {
if (palette != current_palette) {
memcpy(current_palette, palette, 768);
}
for (i=0 ; i<256 ; i++) {
colors[i].pixel = i;
colors[i].flags = DoRed|DoGreen|DoBlue;
colors[i].red = vid_gamma[palette[i*3]] * 256;
colors[i].green = vid_gamma[palette[i*3+1]] * 256;
colors[i].blue = vid_gamma[palette[i*3+2]] * 256;
}
XStoreColors(x_disp, x_cmap, colors, 256);
}
}
/*
Called at shutdown
*/
void
VID_Shutdown(void)
{
Sys_Printf("VID_Shutdown\n");
if (x_disp) {
XAutoRepeatOn(x_disp);
x11_close_display();
x_disp = 0;
}
}
static int config_notify=0;
static int config_notify_width;
static int config_notify_height;
/*
Flushes the given rectangles from the view buffer to the screen.
*/
void
VID_Update(vrect_t *rects)
{
/* If the window changes dimension, skip this frame. */
if (config_notify) {
fprintf(stderr, "config notify\n");
config_notify = 0;
vid.width = config_notify_width & ~7;
vid.height = config_notify_height;
if (doShm)
ResetSharedFrameBuffers();
else
ResetFrameBuffer();
vid.rowbytes = x_framebuffer[0]->bytes_per_line;
vid.buffer = x_framebuffer[current_framebuffer]->data;
vid.conbuffer = vid.buffer;
vid.conwidth = vid.width;
vid.conheight = vid.height;
vid.conrowbytes = vid.rowbytes;
vid.recalc_refdef = 1; /* force a surface cache flush */
Con_CheckResize();
Con_Clear_f();
return;
}
if (doShm) {
while (rects) {
if (x_visinfo->depth == 16) {
st2_fixup(x_framebuffer[current_framebuffer],
rects->x, rects->y, rects->width,
rects->height);
} else if (x_visinfo->depth == 24) {
st3_fixup(x_framebuffer[current_framebuffer],
rects->x, rects->y, rects->width,
rects->height);
}
if (!XShmPutImage(x_disp, x_win, x_gc,
x_framebuffer[current_framebuffer],
rects->x, rects->y,
rects->x, rects->y,
rects->width, rects->height, True)) {
Sys_Error("VID_Update: XShmPutImage failed\n");
}
oktodraw = false;
while (!oktodraw) x11_process_event();
rects = rects->pnext;
}
current_framebuffer = !current_framebuffer;
vid.buffer = x_framebuffer[current_framebuffer]->data;
vid.conbuffer = vid.buffer;
XSync(x_disp, False);
} else {
while (rects) {
if (x_visinfo->depth == 16) {
st2_fixup(x_framebuffer[current_framebuffer],
rects->x, rects->y, rects->width,
rects->height);
} else if (x_visinfo->depth == 24) {
st3_fixup(x_framebuffer[current_framebuffer],
rects->x, rects->y, rects->width,
rects->height);
}
XPutImage(x_disp, x_win, x_gc, x_framebuffer[0],
rects->x, rects->y, rects->x, rects->y,
rects->width, rects->height);
rects = rects->pnext;
}
XSync(x_disp, False);
}
}
static int dither;
void
VID_DitherOn(void)
{
if (dither == 0) {
vid.recalc_refdef = 1;
dither = 1;
}
}
void
VID_DitherOff(void)
{
if (dither) {
vid.recalc_refdef = 1;
dither = 0;
}
}
void VID_InitCvars ()
{
// It may not look like it, but this is important
}
Reference in New Issue View Git Blame Copy Permalink